:root {
  --bg: #140d09;
  --panel: #1d130d;
  --panel-2: #241809;
  --ink: #f3e7d8;
  --ink-dim: #c8ac92;
  --ink-faint: #8a6e57;
  --line: #3c2a1c;
  --ember: #e2632b;
  --ember-hot: #ffb04a;
  --ember-dim: #7a3417;
  --gas: #6fb6d9;
  --cold: #3a5066;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --wrap: 780px;
}

* { box-sizing: border-box; }
html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }

.top { padding: 16px 22px; font-size: 14px; }
.top a { color: var(--ink-faint); text-decoration: none; }
.top a:hover { color: var(--ember-hot); }

.masthead { padding-top: 8px; padding-bottom: 12px; }
.kicker {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ember-hot);
  margin: 0 0 16px;
}
h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 58px;
  line-height: 1.06;
  margin: 0 0 18px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.deck {
  font-family: var(--serif);
  font-size: 22px;
  line-height: 1.48;
  color: var(--ink-dim);
  margin: 0 0 6px;
  font-weight: 500;
  font-style: italic;
}

article { padding-bottom: 8px; }
p { margin: 0 0 22px; color: var(--ink); }
p.lede { font-size: 20px; }
a { color: var(--ember-hot); }
strong { color: var(--ink); }

h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 27px;
  margin: 40px 0 16px;
  color: var(--ink);
}

.langbar { margin: 18px 0 6px; font-size: 14px; color: var(--ink-faint); }
.langbar a { color: var(--ink-dim); text-decoration: none; border-bottom: 1px solid var(--line); }
.langbar a:hover { color: var(--ember-hot); border-color: var(--ember-hot); }
.langbar .current { color: var(--ember-hot); }

/* --- stat strip --- */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin: 8px 0 40px;
}
.stat { background: var(--panel); padding: 22px 14px; text-align: center; }
.stat .num { font-family: var(--mono); font-size: 25px; font-weight: 600; color: var(--ember-hot); display: block; }
.stat .lbl { font-size: 12.5px; color: var(--ink-faint); margin-top: 7px; display: block; line-height: 1.4; }

/* --- instrument --- */
.instrument {
  margin: 40px 0 40px;
  padding: 26px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
}
.instrument-caption {
  text-align: center;
  font-size: 14px;
  color: var(--ink-faint);
  margin: 0 0 20px;
}

.sortbar { display: flex; justify-content: center; gap: 8px; margin: 0 0 20px; flex-wrap: wrap; }
.sort-btn {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  padding: 8px 14px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-dim);
  border-radius: 3px;
  cursor: pointer;
}
.sort-btn:hover { border-color: var(--ember-hot); color: var(--ember-hot); }
.sort-btn.active { background: var(--ember); color: #140d09; border-color: var(--ember); font-weight: 600; }

.hearths {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(64px, 1fr));
  gap: 10px 6px;
}
.hearth {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 8px 2px 6px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
}
.hearth:hover, .hearth:focus-visible { border-color: var(--ember-dim); background: var(--panel-2); outline: none; }
.hearth.picked { border-color: var(--ember); background: var(--panel-2); }

.flame {
  position: relative;
  width: 30px;
  height: 58px;
  display: block;
}
.flame-track {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 22px;
  height: 100%;
  border-radius: 3px 3px 2px 2px;
  background: linear-gradient(180deg, #241809, #150e0a 70%);
  border: 1px solid var(--line);
  overflow: hidden;
}
.flame-wood {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: calc(var(--lemn, 0) * 1%);
  background: linear-gradient(180deg, var(--ember-hot), var(--ember) 60%, var(--ember-dim));
  animation: flicker 2.6s ease-in-out infinite;
}
.flame-cold {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: calc(var(--nuex, 0) * 1%);
  background: repeating-linear-gradient(135deg, var(--cold), var(--cold) 2px, #1a2733 2px, #1a2733 4px);
}
.flame-gas {
  position: absolute;
  top: 2px; left: 2px; right: 2px;
  height: 5px;
  border-radius: 2px;
  background: var(--gas);
  opacity: var(--gas-on, 0);
}
@keyframes flicker {
  0%, 100% { filter: brightness(1); }
  30% { filter: brightness(1.08); }
  55% { filter: brightness(0.94); }
  80% { filter: brightness(1.04); }
}
@media (prefers-reduced-motion: reduce) {
  .flame-wood { animation: none; }
}

.hearth-name { font-size: 10.5px; color: var(--ink-dim); text-align: center; line-height: 1.15; }
.hearth-pct { font-family: var(--mono); font-size: 11px; color: var(--ember-hot); font-weight: 600; }

.legend { display: flex; justify-content: center; gap: 18px; margin: 18px 0 4px; font-size: 12.5px; flex-wrap: wrap; }
.legend span.item { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-faint); }
.legend .sw { width: 12px; height: 12px; border-radius: 2px; display: inline-block; }
.sw.wood { background: linear-gradient(180deg, var(--ember-hot), var(--ember-dim)); }
.sw.cold { background: repeating-linear-gradient(135deg, var(--cold), var(--cold) 2px, #1a2733 2px, #1a2733 4px); }
.sw.gas { background: var(--gas); }

.detail {
  margin-top: 18px;
  padding: 16px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 15px;
  color: var(--ink-dim);
  min-height: 3.2em;
}
.detail b { color: var(--ember-hot); }
.detail .county-en { color: var(--ink-faint); font-size: 13px; }

.fallback-table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 8px 0 24px; }
.fallback-table th, .fallback-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); }
.fallback-table th { color: var(--ink-faint); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.js .fallback-wrap { display: none; }
.fallback-wrap summary { cursor: pointer; color: var(--ink-dim); font-size: 13.5px; margin: 6px 0 10px; }

.pairing {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin: 18px 0 30px;
}
.pair { background: var(--panel); padding: 18px 16px; }
.pair h3 { font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); margin: 0 0 10px; }
.pair .big { font-family: var(--mono); font-size: 30px; font-weight: 600; color: var(--ember-hot); display: block; }
.pair p { font-size: 13.5px; color: var(--ink-dim); margin: 8px 0 0; }

.method {
  font-size: 14.5px;
  color: var(--ink-faint);
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 8px;
}

footer.wrap { padding: 30px 22px 60px; font-size: 13.5px; color: var(--ink-faint); }
footer a { color: var(--ink-dim); }

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  font-family: var(--mono);
  font-size: 12px;
  padding: 9px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink-dim);
  border-radius: 20px;
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.back-to-top.show { opacity: 1; pointer-events: auto; }
.back-to-top:hover { color: var(--ember-hot); border-color: var(--ember-hot); }

@media (max-width: 480px) {
  h1 { font-size: 36px; }
  .deck { font-size: 18.5px; }
  body { font-size: 16.5px; }
  .stats { grid-template-columns: 1fr; }
  .pairing { grid-template-columns: 1fr; }
  .hearths { grid-template-columns: repeat(auto-fill, minmax(54px, 1fr)); }
  .flame { width: 24px; height: 48px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}